Even if the titlescreen says 1987, 1943 Kai was released in June 1988 in Japan.
The title of this game translates from Japanese as "1943 Modified - Midway Naval Battle".
This update of "1943 - Midway Kaisen
" was only released to arcades in Japan; it was only released outside Japan to home systems (see Ports below). 1943 Kai has most of it's graphics and sounds redone compared to the original. It also has an upgraded weapon scheme. The plane you're flying is not the regular P-38 but a biplane Boeing Stearman E75 N68828.
Default High-score table ('Ranking best 5') :
1ST 200000 TAE
2ND 150000 YAM
3RD 100000 POO
4TH 70000 MR.
5TH 50000 BLB
Pony Canyon / Scitron released a limited-edition soundtrack album for this game (Daimakaimura : G.S.M. Capcom 1 - D28B-0011) on January 11, 1989.